مصادر الكيمياء موقع لتعليم الكيمياء بصورة مبسطة
Elemental silicon has the same structure as diamond. Compared to diamond, in the silicon there is a smaller energy gap between the filled and empty molecular orbitals, hence a few electrons can cross the gap at 25oC, making silicon a semiconducting element, or semiconductor. At higher temperatures the conductivity of silicon increases. There are two types of semiconductors: 1 – …
أكمل القراءة »